radial clearance短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 径向间隙 Using traditional radial clearance method, lots of data are needed, and it is difficult to check the electric distance of line and guy which are not in the same plane. 传统的间隙圆校核方法需要大量的数据，而且不容易校核不在同一平面的导线和拉线的电气距离。 cnki